Micromax Informatics — I am complaining about my device battery and duplicate data cable

My battery issue i was purchased my battery from chandigarh service centre and with in 2-3months battery were swell up i was also purchased data cable from bathinda service centre (Unitech) due to this data cable my battery is swell up because that data cable is duplicated. I want to change my battery as soon as possible with out any cost because data cable as well as battery are in warttey period.